package itheima.com.zuoye.d05;

public class Computer {

    public void connect(IUSB iusb) {
        System.out.println("电脑连接了USB设备");
    }


    public void disconnect(IUSB  iusb) {
        System.out.println("电脑断开了USB设备");

    }
//    startup()
    public void startup(){
        System.out.println("电脑启动了");
    }
//    shutdown()
    public void shutdown(){
        System.out.println("电脑关机了");
    }
}
